local match = require "luassert.match"
local process = require "mason-core.process"
local spy = require "luassert.spy"

describe("process.spawn", function()
    -- Unix only
    it("should spawn command and feed output to sink", function()
        local stdio = process.BufferedSink:new()
        local callback = spy.new()
        process.spawn("env", {
            args = {},
            env = {
                "HELLO=world",
                "MY_ENV=var",
            },
            stdio_sink = stdio,
        }, callback)

        assert.wait(function()
            assert.spy(callback).was_called(1)
            assert.spy(callback).was_called_with(true, 0, match.is_number())
            assert.equals(table.concat(stdio.buffers.stdout, ""), "HELLO=world\nMY_ENV=var\n")
        end)
    end)
end)